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Перевод: vanadium

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Тезаурус:

1. Vanadium
2. Cells of the bacteria were heavily mineralised with uranium, calcium, vanadium, bismuth, selenium and sulphur.
3. Minor amounts of vanadium were produced from the Alderley Edge copper mine in Cheshire where the element occurs in vanadinite (Carlon, 1979).
4. A 150 mm cut off length of 25 mm vanadium steel hacksaw blade sharpened at one end and wrapped in PVC insulating tape at the other makes a very useful scraper.
5. This gas is then cleaned and converted into sulphur trioxide via a vanadium pentoxide catalyst.
6. Thus South Africa and the USSR provide between them 94 per cent of the world's platinum-group metals, 65 per cent of its vanadium, 60 per cent of its chromium and 58 per cent of its manganese.
7. Recent attempts to subdivide the largely homogeneous psammites of the Grampian Group into shallow- and deep-water facies are supported in part by the regional distributions of elements such as cobalt and vanadium.
8. The metals probably include chromium, manganese, cobalt, vanadium, nickel, tungsten and tantalum.
9. Uranium, calcium and vanadium were precipitated as a fine platy mineral (possibly liebigite) associated with the mucilage around the filamentous masses.
10. Mineralisation within the nodules consists of uranium, vanadium and iron oxides with base metal sulphides.
11. The controls exercised by basement structure on late Precambrian and Dalradian sedimentation are evident from the regional geochemistry, with abrupt variations, for example, in titanium, vanadium, chromium, nickel, magnesium, cobalt and copper coinciding with features such as the Portsoy lineament.
12. For instance, in a high-strength steel section in an engine, only those parts exposed to the greatest stresses would require sophisticated alloys containing a metal such as tantalum or vanadium, with the remaining components made of something less exotic.
13. Thus tunicates (creatures distantly related to vertebrates, and commonly known as "sea-squirts") naturally accumulate vanadium or titanium which are present in sea water only in a few parts per billion.